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No new sunspots yet, but a big surprise this week with aurora and a geomagnetic storm: Sunspot activity peaked around 0300-0900 UTC on Wednesday July 22, with K index as high as 6. The planetary A index for the day was 24. You can see the K index variatio Learn More

Another week of quiet Sun, but on Wednesday and Thursday -- August 20-21 -- a new spot seemed to be emerging, but there is no sign that it is anything other than an old Solar Cycle 23 spot. Spaceweather.com reported it with a sunspot number of 11 for Augu Learn More

This week we had a couple of brief sunspot appearances -- 991 and 992 -- but they were both from Solar Cycle 23 and their emergence was fleeting. On Wednesday, April 23, the planetary A index rose to 32 due to a solar wind and south-pointing Interplanetar Learn More